I received a call from this number. The person (or possibly recording) started babbling about being from some mortgage company calling to inform me of a new fha load approved by congress. I just hung up. Not sure how they got my cell. I do not put my cell number on applications or anything like that. I have a land line for that.  I did find a site which Xspedius was the carrier of the prefix 507 and was located in zip code 38103 (not a good part of town)